US3411575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal recovery method for heavy hydrocarbons employing a heated permeable channel and forward in situ combustion in subterranean formations
Assignee: Mobil Oil AS
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Filing: 1967-06-19
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Granted: 1968-11-19
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Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl Connally
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:05
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243; E21B43/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2880802A
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US2901043A
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US3167120A
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US3149670A
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US3167121A
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US3280909A
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US3369604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |